Kuba, welcome to the site. There are a few of us VX'ers in the Los Angeles area.
To answer your question: All white VX'es are the Ironman version with red/blk interior. Created as a tribute to the Ironman Marathon, this VX was a special package that included Ironman logo embossed seats, Ironman logo on the floormats, Ironman decals on the hood insert and on the sides of the vehicle. No difference under the hood.
Make sure you read as much as possible on the potential problems with VX's.. like binding windows, flaking chrome wheels, etc., and ideally find a VX that has a documented history on all its maintenance if possible.